<div class="container">
    <div class="panel panel-primary" id="panel">
        <div class="panel-heading" id="panel-head">
            <div class="panel-title">
                <h4 class="text-center" id="panel-title">后台验证</h4>
            </div>
        </div>
        <div class="panel-body" id="panel-body"><br/>
            <input type="text" class="form-control" placeholder="帐户名：" name="cname"/><br/>
            <input type="password" class="form-control" placeholder="密码：" name="password"/><br/>
            <input type="button" class="btn btn-success" value="登录" name="submit" /><br/><br/>
        </div>
    </div>
</div>